Factors and Multiples

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is a composite number?

Back

A composite number is a natural number greater than 1 that is not prime, meaning it has more than two positive divisors.

Front

What is the only even prime number?

Back

2 is the only even prime number.

Front

List the first five prime numbers.

Back

2, 3, 5, 7, 11.

Front

What is a factor?

Back

A factor is a whole number that can be divided evenly into another number.

Front

What is a multiple?

Back

A multiple of a number is the product of that number and an integer.

Front

What is a factor pair?

Back

A factor pair consists of two numbers that, when multiplied together, equal a given number.

Front

Identify a factor pair of 24.

Back

(2, 12) is a factor pair of 24.

Front

Is 15 a prime number?

Back

No, 15 is not a prime number because it has divisors other than 1 and itself (3 and 5).

Front

Is 3 a prime number?

Back

Yes, 3 is a prime number because its only divisors are 1 and 3.